The Southern Algonquin begins on Castle Drive on the western side of Algonquin along the West River. Castle Drive is a rather tame road, but it's certainly the only tame road on this race, and out of the nine races in the game, this should certainly be considered one of the harder ones. This is because as soon as you get off of the ever-winding Castle Drive, you'll meet up with Union Drive West heading in a southeasterly direction. This is a congested and busy road at most times in the game, day or night, so you (and thankfully, your opponents) should have a bit of a hard time, unless it's in the middle of the night, at which point congestion should be minimal.

Union Drive West ultimately connects with a tunnel called Castle Tunnel. Castle Tunnel almost exclusively winds back and forth, so take it slow and make sure not to veer into oncoming traffic. The lane divider is slightly raised, as well, so this can send your car spinning completely out of control. The tunnel might not always be congested, but the way it's laid out means you have to go in there carefully if you want to come out of there alive!

Once you emerge from the tunnel, you'll have to make a sharp turn heading back towards the west along South Parkway. This turn signifies the only time you might be able to take somewhat of a shortcut, since you don't have to follow the outer (proper) lane to reach the first yellow marker on South Parkway. Once back on South Parkway, it's a northerly drive to Union Drive West, where you'll eventually reconnect with Castle Drive, signifying one full lap. Keep in mind that the careful congestion rules on your way southward are also in effect on your way back north.